北海湾不同形态氮磷关系的研究

A Study on the Relationship Between Various States of Nitrogen and Phosphorus in Beihai Bay

利用年月至年月的调查资料,探讨了北海湾不同形态比的分布、季节变 1998 10 1999 8 N/P 化、相互关系及其影响因素。结果表明:本湾不同形态比差异较大,春夏季明显高于秋冬季,其中春 N/P 夏季浮游植物生长为所限制,而秋冬季则以限制为主;秋冬季节各态之间的关系最为显著;沿 P N N/P 岸水的物理混合作用是影响该湾不同形态比的主要控制因素,但生物和物理化学作用也占有重要的地 N/P 位。

Based on the investigations from October 1998 to August 1999, the distribution, seasonal change, correlations and the influence factors of the various states of N/P ratios in the seawaters of Beihai Bay are studied in this paper. The results show that the various states of N/P ratios differ greatly in different seasons, which are obviously higher in the spring and summer than that in autumn and winter. The growth of the plankton is limited by P in spring and summer and by N in autumn and winter.The relationship among various states of N/P ratios in the autumn and winter is the most remarkable. The physical mixture of the coastwise runoff is the main controlling factor affecting the various states of N/P ratios. And the biological and physicochemical chemistry action occupies an important position too.